\begin{table}

\caption{}
\centering
\begin{tabular}[t]{lrrrrrr}
\toprule
\multicolumn{1}{c}{ } & \multicolumn{2}{c}{treatment (N=400)} & \multicolumn{2}{c}{control (N=373)} & \multicolumn{2}{c}{ } \\
\cmidrule(l{3pt}r{3pt}){2-3} \cmidrule(l{3pt}r{3pt}){4-5}
  & Mean & Std. Dev. & Mean & Std. Dev. & Diff. in Means & p\\
\midrule
Age & 2.27 & 0.94 & 2.28 & 0.93 & 0.01 & 0.83\\
Gender & 1.29 & 0.46 & 1.29 & 0.46 & 0.00 & 1.00\\
Education & 4.64 & 1.01 & 4.61 & 1.02 & -0.03 & 0.69\\
Interest in Politics & 2.81 & 0.76 & 2.84 & 0.75 & 0.03 & 0.56\\
Ideology Self & 5.36 & 3.25 & 5.29 & 3.17 & -0.07 & 0.76\\
Polarization Candidates & 6.77 & 3.43 & 6.70 & 3.51 & -0.07 & 0.79\\
WP:Daily time & 6.89 & 1.30 & 6.81 & 1.34 & -0.08 & 0.40\\
WP:Frequency Politics & 4.37 & 2.11 & 4.48 & 2.13 & 0.11 & 0.50\\
WP:Frequency News & 3.31 & 1.93 & 3.32 & 2.04 & 0.02 & 0.90\\
WP:Frequency Family & 1.89 & 0.89 & 1.85 & 0.92 & -0.04 & 0.50\\
WP:Frequency Images about Politics & 3.65 & 1.88 & 3.75 & 1.97 & 0.10 & 0.49\\
N Active Social Media Apps & 3.89 & 1.31 & 3.98 & 1.28 & 0.08 & 0.37\\
Duration Pre-treatment & 8.46 & 18.59 & 29.55 & 302.09 & 21.09 & 0.18\\
Omnibus Test: & F-Statistics = 0.56, p-values = 0.89 &  &  &  &  & \\
\bottomrule
\end{tabular}
\end{table}
